Income Taxes, Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets [Abstract]
Allowance for loan losses	$ 4,580	$ 4,317
Deferred compensation	82	91
Retirement compensation	1,635	1,559
Stock option compensation	379	311
Postretirement benefits	107	578
Current state franchise taxes	490	322
Non-accrual interest	416	291
Sale-leaseback	2	26
Lease liability	1,590	1,667
Investment securities unrealized loss	19,419	1,115
Other	392	246
Deferred tax assets	29,092	10,523
Deferred tax liabilities [Abstract]
Fixed assets depreciation	1,183	1,320
FHLB dividends	184	184
Tax credit - loss on pass-through	422	400
Deferred loan costs	1,024	1,010
Mortgage servicing rights	378	288
Right of Use Asset	1,450	1,519
Other	276	147
Total deferred tax liabilities	4,917	4,868
Net deferred tax assets (see Note 7)	$ 24,175	$ 5,655